Journal article
Origin and migration of trochlear, oculomotor and abducent motor neurons in Petromyzon marinus l
Brain research. Developmental brain research, Vol.74(1), pp.122-126
1993
DOI: 10.1016/0165-3806(93)90091-N
PMID: 8403365
Abstract
The development of the ocular motor system was studied in 3- to 6-year old larval lampreys with two different retrograde tracers. Motor neurons of the oculomotor and trochlear nuclei are situated closely to one another in younger larvae. Cases in which only trochlear neurons were labelled revealed trochlear motor neurons scattered from the midbrain tegmentum through the anterior medullary velum. We believe this distribution reflects the place of final mitosis (midbrain tegmentum) and subsequent migration (anterior medullary velum) of lamprey trochlear motor neurons. Evidence is also presented for contralateral migration of oculomotor motor neurons and for ventrolateral migration of abducent motor neurons. The distances covered by migrating ocular motor neurons range from 100 to 150 μm in small larvae; these are distances that could be covered easily during the several years duration of larval development in lampreys.
Details
- Title: Subtitle
- Origin and migration of trochlear, oculomotor and abducent motor neurons in Petromyzon marinus l
- Creators
- Bernd FritzschR.Glenn Northcutt
- Resource Type
- Journal article
- Publication Details
- Brain research. Developmental brain research, Vol.74(1), pp.122-126
- DOI
- 10.1016/0165-3806(93)90091-N
- PMID
- 8403365
- NLM abbreviation
- Brain Res Dev Brain Res
- ISSN
- 0165-3806
- Publisher
- Elsevier B.V
- Language
- English
- Date published
- 1993
- Academic Unit
- Iowa Neuroscience Institute; Biology; Craniofacial Anomalies Research Center
- Record Identifier
- 9984070365102771
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